1 x Nut Splitter Cracker,9-12mm(1/8"-1/2"), 1 x Nut Splitter Cracker,12-16mm(1/2"-5/8"), 1 x Nut Splitter Cracker,16-22mm(5/8"-7/8"), 1 x Nut Splitter Cracker,22-27mm(7/8"-1-1/16"). Versatile Sizing: With four different nut splitter extractors, our kit covers a wide range of nut sizes, from 9-12mm (#1) to 22-27mm (#4).